United Airlines' Chief Executive said he will not quit amid an explosive backlash to a video of a screaming passenger being dragged off a plane.
Much of the outrage centred on the fact that Mr Dao was a paying passenger who had been removed from the Chicago to Louisville flight to make way for additional crew members.
How many times in the past year has United Airlines removed a passenger that has already boarded a plane due to overbooking or other reasons outside the customer's control?
Three aviation security officers involved in the United flight incident have now been placed on administrative leave the Chicago Department of Aviation said.
The department announced today that two more officers have been placed on leave.
But when asked if he would stand down, he said: "I was hired to make United better and we've been doing that and that's what I'll continue to do".
Attorneys for the passenger, David Dao, filed court papers earlier today asking the airline and the city of Chicago to preserve evidence in the case. Video shot by passengers showing the man's bloodied face went viral on social media, prompting a storm of protest. United was trying to find seats for four employees, meaning four passengers had to deplane.
David Dao's lawyers on Wednesday made the first moves toward a lawsuit with an emergency filing in Cook County court.
In his most contrite apology yet, Oscar Munoz said Tuesday that no one should be mistreated that way.
Though Munoz said he attempted to contact the Daos, Demetrio said he feels Munoz "misspoke", adding that that didn't happen.
A video of the man being pulled from his seat after he refused to leave the full plane has been seen around the world and resulted in harsh criticism for United and Aviation Department police.
Passenger Jayse Anspach told CNN that Dao and his wife initially agreed to take a later flight, but recanted upon learning that that flight wouldn't take off till Monday morning. When no one voluntarily came forward, United selected four passengers at random. They have sometimes refused airlines' requests to board planes, said spokesman and police officer Rob Pedregon. The four top-ranking members of the Senate Commerce Committee asked the airline and Chicago airport officials for more information about what happened.
The backlash from the incident resonated around the world, with social media users in the United States, China and Vietnam calling for boycotts of the No 3 USA carrier by passenger traffic and an end to the practice of overbooking flights.